223522 has 8 divisors (see below), whose sum is σ = 361116. Its totient is φ = 103152.

The previous prime is 223507. The next prime is 223529. The reversal of 223522 is 225322.

It can be written as a sum of positive squares in 2 ways, for example, as 221841 + 1681 = 471^2 + 41^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 2³ + 2¹⁵ + 5⁴ + 3¹⁰ + 2¹⁶ + 2¹⁶ .

It is a nialpdrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 223496 and 223505.

It is not an unprimeable number, because it can be changed into a prime (223529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4273 + ... + 4324.

2²²³⁵²² is an apocalyptic number.

223522 is a deficient number, since it is larger than the sum of its proper divisors (137594).

223522 is a wasteful number, since it uses less digits than its factorization.

223522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8612.

The product of its digits is 240, while the sum is 16.

The square root of 223522 is about 472.7811332953. The cubic root of 223522 is about 60.6885495800.

Adding to 223522 its reverse (225322), we get a palindrome (448844).

The spelling of 223522 in words is "two hundred twenty-three thousand, five hundred twenty-two".